Identifier: electricrailway381911newy (find matches)
Title: Electric railway journal
Year: 1908 (1900s)
Authors:
Subjects: Electric railroads
Publisher: (New York) McGraw Hill Pub. Co
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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F HIGH-SPEED PASSENGER LOCOMOTIVE The passenger locomotive shown on page 1021 is built fora speed of 68 m.p.h. Its total length over buffers is 41 ft.and its fixed wheel base is 9 ft. 8 in. A diameter of 63 in.was selected for the driving wheels, which revolve at400 r.p.m. or more at the maximum speed. This speed,which is high compared with that of steam locomotives. operates the warning whistle. The form of the drivingrods corresponds to the usual construction on German steam locomotives. ELECTRICAL EQUIPMENT OF HIGH-SPEED PASSENGER LOCOMO-TIVE The locomotive is driven by an a.c. commutator motorof about 1000 hp on the hourly rating. The motor frameis attached to the transverse girders of the locomotive andcan be adjusted in place by means of wedges and pressurescrews. Its open construction permits a convenient in-spection of the commutator brushes. Its tractive effortand speed are regulated by the ordinary contactor control.The current is taken at to.ooo volts by means of two panto-
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Dessau-Bitterfeld Electrification—Express Train in Service was adopteil without hesitation by the engineers in chargeof the work because of the absence in the electric locomo-tive of large reciprocating masses. It will be noted that the two leading axles of the passen-ger locomotive are combined in a pony truck, while a singleor Adam axle is used at the trailing end. The two driv-ing axles have a parallel crank drive with an intermediatecrank shaft which is driven from a motor mounted highin the frame. This arrangement provides such good bal-ance that the locomotive runs smoothly at all speeds. Ithas even run without difficulty at the highest permissiblespeed with the trailer axle in front. The motor is placed vertically over the intermediatecrank shaft, an arrangement which is advantageous inmotor mounting. The intermediate crank-shaft bearing isconstructed in four parts and is adjusted both verticallyand horizontally by means of wedges. Further, as thisbearing is somewhat inaccess

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